package com.changgou.goods.service.impl;

import com.alibaba.fastjson.JSON;
import com.changgou.goods.dao.*;
import com.changgou.goods.dtd.CategoryBrand;
import com.changgou.goods.dtd.Goods;
import com.changgou.goods.pojo.Brand;
import com.changgou.goods.pojo.Category;
import com.changgou.goods.pojo.Sku;
import com.changgou.goods.service.SpuService;
import com.changgou.goods.pojo.Spu;
import com.changgou.util.IdWorker;
import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import tk.mybatis.mapper.entity.Example;

import java.util.Date;
import java.util.List;
import java.util.Map;

@Service
public class SpuServiceImpl implements SpuService {

    @Autowired
    private SpuMapper spuMapper;
    @Autowired
    private SkuMapper skuMapper;
    @Autowired
    private IdWorker idWorker;
    @Autowired
    private BrandMapper brandMapper;
    @Autowired
    private CategoryMapper categoryMapper;
    @Autowired
    private CategoryBrandMapper categoryBrandMapper;

    /**
     * 还原商品
     * @param id
     */
    @Override
    public void restore(String id) {
        Spu spu = spuMapper.selectByPrimaryKey(id);
        if (spu==null){
            throw new RuntimeException("商品不存在");
        }
        if (spu.getIsDelete()=="0"){
            throw new RuntimeException("商品未删除");
        }
        spu.setIsDelete("0");
        spu.setStatus("0");
        spuMapper.updateByPrimaryKey(spu);

    }
    /**
     * 逻辑删除商品
     * @param id
     */
    @Override
    public void logicdelete(String id) {
        Spu spu = spuMapper.selectByPrimaryKey(id);
        if (spu==null){
            throw new RuntimeException("商品不存在");
        }
        if (spu.getIsDelete()=="1"){
            throw new RuntimeException("商品已删除");
        }
        spu.setIsDelete("1");
        spu.setStatus("0");
        spuMapper.updateByPrimaryKey(spu);

    }
    /**
     * 下架商品
     * @param id
     */
    @Override
    public void soldout(String id) {
        Spu spu = spuMapper.selectByPrimaryKey(id);
        if (spu==null){
            throw new RuntimeException("商品不存在");
        }
        if (spu.getIsDelete()=="1"){
            throw new RuntimeException("商品已删除");
        }
        spu.setIsMarketable("0");
        spuMapper.updateByPrimaryKey(spu);
    }
    /**
     * 上架商品
     * @param id
     */
    @Override
    public void putaway(String id) {
        Spu spu = spuMapper.selectByPrimaryKey(id);
        if (spu==null){
            throw new RuntimeException("商品不存在");
        }
        if (spu.getIsMarketable()=="0"){
            throw new RuntimeException("商品未审核");
        }
        spu.setIsMarketable("1");
        spuMapper.updateByPrimaryKey(spu);

    }

    @Override
    public void audit(String id) {
        Spu spu = spuMapper.selectByPrimaryKey(id);
        if (spu==null){
            throw new RuntimeException("商品不存在");
        }
        if (spu.getIsMarketable()=="1"){
            throw new RuntimeException("商品已审核");
        }
        if (spu.getIsDelete()=="1"){
            throw new RuntimeException("商品已删除");
        }
           spu.setIsMarketable("1");
           spu.setStatus("1");
         spuMapper.updateByPrimaryKey(spu);

    }

    /**
     * 查询全部列表
     * @return
     */
    @Override
    public List<Spu> findAll() {
        return spuMapper.selectAll();
    }

    /**
     * 根据ID查询
     * @param id
     * @return
     */
    @Override
    public Spu findById(String id){

        return  spuMapper.selectByPrimaryKey(id);
    }

    @Override
    public Goods findGoodsByID(String id) {
        Goods goods=new Goods();
        Spu spu = spuMapper.selectByPrimaryKey(id);
        goods.setSpu(spu);
        Example example=new Example(Sku.class);
        Example.Criteria criteria=example.createCriteria();
        criteria.andEqualTo("spu_id",id);
        List<Sku> skus = skuMapper.selectByExample(example);
        goods.setSkuList(skus);

        return goods;
    }

    /**
     * 修改goods
     * @param goods
     */
    @Override
    public void updateGoods(Goods goods) {
        Spu spu = goods.getSpu();
        String id = spu.getId();
        Spu spu1 = spuMapper.selectByPrimaryKey(id);
        if (spu1==null){
            throw new RuntimeException("修改的商品不存在");
        }
        spuMapper.updateByPrimaryKeySelective(spu);
        Example example = new Example(Sku.class);
        Example.Criteria criteria = example.createCriteria();
        criteria.andEqualTo("spu_id",spu.getId());
        skuMapper.deleteByExample(example);
        saveSkuList(goods);
    }


    /**
     * 增加
     * @param goods
     */
    @Override
    public void add(Goods goods){
        Spu spu = goods.getSpu();
        //设置分布式Id
       spu.setId(String.valueOf(idWorker.nextId()));
       //设置逻辑删除状态
       spu.setIsDelete("0");
       //设置上架状态
       spu.setIsMarketable("0");
       //设置审核状态
        spu.setStatus("0");

        spuMapper.insertSelective(spu);
        //调用方法存入skulist`
        saveSkuList(goods);
    }

    public void saveSkuList(Goods goods){
        Spu spu = goods.getSpu();
        List<Sku> skuList = goods.getSkuList();
        Date date=new Date();
        Brand brand = brandMapper.selectByPrimaryKey(spu.getBrandId());
        Category category = categoryMapper.selectByPrimaryKey(spu.getCategory3Id());
        //添加品牌表和分类表的关联
        CategoryBrand categoryBrand = new CategoryBrand();
        categoryBrand.setBrand_id(spu.getBrandId());
        categoryBrand.setCategory_id(spu.getCategory3Id());

        int count = categoryBrandMapper.selectCount(categoryBrand);
        //如果没有则添加分类和品牌关系数据
        if (count==0){
            categoryBrandMapper.insertSelective(categoryBrand);
        }

        for (Sku sku : skuList) {
            sku.setId(String.valueOf(idWorker.nextId()));
            sku.setCreateTime(date);
            sku.setUpdateTime(date);
            sku.setBrandName(brand.getName());
            sku.setCategoryId(category.getId());
            sku.setCategoryName(category.getName());
            if (sku.getSpec()==null||"".equals(sku.getSpec())){
                sku.setSpec("{}");
            }
            String name = sku.getName();
            Map<String,String> map = JSON.parseObject(sku.getSpec(), Map.class);
            if (map!=null&&map.size()>0){
                for (String value:map.values()){
                   name=name+""+value;
                }
            }
            sku.setName(name);
            skuMapper.insertSelective(sku);
        }


    }
    /**
     * 修改
     * @param spu
     */

    @Override
    public void update(Spu spu){
        spuMapper.updateByPrimaryKey(spu);
    }

    /**
     * 删除
     * @param id
     */
    @Override
    public void delete(String id){
        spuMapper.deleteByPrimaryKey(id);
    }


    /**
     * 条件查询
     * @param searchMap
     * @return
     */
    @Override
    public List<Spu> findList(Map<String, Object> searchMap){
        Example example = createExample(searchMap);
        return spuMapper.selectByExample(example);
    }

    /**
     * 分页查询
     * @param page
     * @param size
     * @return
     */
    @Override
    public Page<Spu> findPage(int page, int size){
        PageHelper.startPage(page,size);
        return (Page<Spu>)spuMapper.selectAll();
    }

    /**
     * 条件+分页查询
     * @param searchMap 查询条件
     * @param page 页码
     * @param size 页大小
     * @return 分页结果
     */
    @Override
    public Page<Spu> findPage(Map<String,Object> searchMap, int page, int size){
        PageHelper.startPage(page,size);
        Example example = createExample(searchMap);
        return (Page<Spu>)spuMapper.selectByExample(example);
    }

    /**
     * 构建查询对象
     * @param searchMap
     * @return
     */
    private Example createExample(Map<String, Object> searchMap){
        Example example=new Example(Spu.class);
        Example.Criteria criteria = example.createCriteria();
        if(searchMap!=null){
            // 主键
            if(searchMap.get("id")!=null && !"".equals(searchMap.get("id"))){
                criteria.andEqualTo("id",searchMap.get("id"));
           	}
            // 货号
            if(searchMap.get("sn")!=null && !"".equals(searchMap.get("sn"))){
                criteria.andEqualTo("sn",searchMap.get("sn"));
           	}
            // SPU名
            if(searchMap.get("name")!=null && !"".equals(searchMap.get("name"))){
                criteria.andLike("name","%"+searchMap.get("name")+"%");
           	}
            // 副标题
            if(searchMap.get("caption")!=null && !"".equals(searchMap.get("caption"))){
                criteria.andLike("caption","%"+searchMap.get("caption")+"%");
           	}
            // 图片
            if(searchMap.get("image")!=null && !"".equals(searchMap.get("image"))){
                criteria.andLike("image","%"+searchMap.get("image")+"%");
           	}
            // 图片列表
            if(searchMap.get("images")!=null && !"".equals(searchMap.get("images"))){
                criteria.andLike("images","%"+searchMap.get("images")+"%");
           	}
            // 售后服务
            if(searchMap.get("saleService")!=null && !"".equals(searchMap.get("saleService"))){
                criteria.andLike("saleService","%"+searchMap.get("saleService")+"%");
           	}
            // 介绍
            if(searchMap.get("introduction")!=null && !"".equals(searchMap.get("introduction"))){
                criteria.andLike("introduction","%"+searchMap.get("introduction")+"%");
           	}
            // 规格列表
            if(searchMap.get("specItems")!=null && !"".equals(searchMap.get("specItems"))){
                criteria.andLike("specItems","%"+searchMap.get("specItems")+"%");
           	}
            // 参数列表
            if(searchMap.get("paraItems")!=null && !"".equals(searchMap.get("paraItems"))){
                criteria.andLike("paraItems","%"+searchMap.get("paraItems")+"%");
           	}
            // 是否上架
            if(searchMap.get("isMarketable")!=null && !"".equals(searchMap.get("isMarketable"))){
                criteria.andEqualTo("isMarketable",searchMap.get("isMarketable"));
           	}
            // 是否启用规格
            if(searchMap.get("isEnableSpec")!=null && !"".equals(searchMap.get("isEnableSpec"))){
                criteria.andEqualTo("isEnableSpec", searchMap.get("isEnableSpec"));
           	}
            // 是否删除
            if(searchMap.get("isDelete")!=null && !"".equals(searchMap.get("isDelete"))){
                criteria.andEqualTo("isDelete",searchMap.get("isDelete"));
           	}
            // 审核状态
            if(searchMap.get("status")!=null && !"".equals(searchMap.get("status"))){
                criteria.andEqualTo("status",searchMap.get("status"));
           	}

            // 品牌ID
            if(searchMap.get("brandId")!=null ){
                criteria.andEqualTo("brandId",searchMap.get("brandId"));
            }
            // 一级分类
            if(searchMap.get("category1Id")!=null ){
                criteria.andEqualTo("category1Id",searchMap.get("category1Id"));
            }
            // 二级分类
            if(searchMap.get("category2Id")!=null ){
                criteria.andEqualTo("category2Id",searchMap.get("category2Id"));
            }
            // 三级分类
            if(searchMap.get("category3Id")!=null ){
                criteria.andEqualTo("category3Id",searchMap.get("category3Id"));
            }
            // 模板ID
            if(searchMap.get("templateId")!=null ){
                criteria.andEqualTo("templateId",searchMap.get("templateId"));
            }
            // 运费模板id
            if(searchMap.get("freightId")!=null ){
                criteria.andEqualTo("freightId",searchMap.get("freightId"));
            }
            // 销量
            if(searchMap.get("saleNum")!=null ){
                criteria.andEqualTo("saleNum",searchMap.get("saleNum"));
            }
            // 评论数
            if(searchMap.get("commentNum")!=null ){
                criteria.andEqualTo("commentNum",searchMap.get("commentNum"));
            }

        }
        return example;
    }

}
